In a thin film of oil on water, if the thickness of the film is 0.1 mm and the wavelength of light in air is 600 nm, what is the condition for constructive interference?
Practice Questions
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Q1
In a thin film of oil on water, if the thickness of the film is 0.1 mm and the wavelength of light in air is 600 nm, what is the condition for constructive interference?
2t = (m + 0.5)λ
2t = mλ
2t = (m + 1)λ
2t = mλ/2
For constructive interference in a thin film with a denser medium below, the condition is 2t = mλ.
Questions & Step-by-step Solutions
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Q: In a thin film of oil on water, if the thickness of the film is 0.1 mm and the wavelength of light in air is 600 nm, what is the condition for constructive interference?
Solution: For constructive interference in a thin film with a denser medium below, the condition is 2t = mλ.
